Micron 7450 Pro 7.68TB | E1.S PCIe Gen4 Enterprise NVMe

The PCIe 4.0 7.68TB Fight: Which Enterprise SSD Actually Wins?

In the 7.68TB PCIe Gen4 class, three names keep coming up in every quote: Micron 7450 Pro, Solidigm P5520, and Kioxia CD8P. They all deliver around 7,000 MB/s-class sequential reads, all carry 1 DWPD endurance ratings, and all drop into the same U.2 bays. So the real differentiators are not the headline numbers – they are the form factor options, power draw under sustained load, and how the drive behaves in EDSFF-based servers built around E1.S and E3.S.

The 7450 Pro is the only one of the three offered across U.3, E1.S and E3.S – and in 2026, with Xeon 6 platforms like the PowerEdge R770 and R670 shipping E3.S Gen5 cages, the form factor is the specification that decides your density.

Official Specifications (7.68 TB, per Micron datasheet)

Performance figures are maximum sustained values per the Micron 7450 Pro datasheet; real-world results vary by workload and platform.

Why E1.S/E3.S Beats U.2 in 2026 Servers

The EDSFF family exists because NVMe density outgrew the 2.5-inch U.2 envelope. E1.S (5.9mm) is a short EDSFF card; E3.S (7.5mm) is the full-length version. In a 2U Xeon 6 server, the drive cage holds 8-40 x E3.S drives – versus 8-16 U.2 at best. EDSFF also improves airflow per drive (the wider card channels air across the NAND) and supports the shorter, lower-latency signal paths the Gen5 era needs.

• Density: up to 40 x E3.S in a 2U – a 245 TB+ all-NVMe tier per node at 7.68 TB per drive.
• Cooling: E1.S/E3.S spread heat across the card face, keeping 7.68 TB drives inside airflow spec in 1U and 2U front-bay layouts.
• Forward compatibility: the same E3.S slot accepts Gen4 drives today and Gen5 drives tomorrow (PCIe 5.0 backplane, 4.0 device).

Pro vs Max: Matching Endurance to Workload

The 1 DWPD Pro rating covers the vast majority of production read-mostly tiers. If your workload writes more than one full drive per day, step to the 7450 Max 3 DWPD class instead – the endurance-per-dollar curve flips there.

NAND, Latency and Power: The Specs Under the Specs

The 7450 Pro is built on Micron’s 176-layer TLC NAND with an in-house controller and DRAM for mapping – a 4KB-aligned design that keeps read latency in the low hundreds of microseconds and write latency sub-millisecond under queue depth. For the 7.68 TB capacity point, operating power sits in the ~12 W class during active I/O (idle drops well below 5 W), which matters twice: it keeps E1.S cards inside the thermal budget of 1U airflows, and it lowers the per-TB power cost of an all-NVMe tier versus multiple smaller drives.

Migration Path: SATA SSD / U.2 to E1.S NVMe

Moving a boot or VDI tier from SATA SSD to E1.S NVMe is a software-free hardware swap in modern tri-mode slots, but plan the migration like a small project:

• Controller check. Confirm the RAID/HBA presents NVMe (PERC H965i-class tri-mode handles NVMe/SAS/SATA in one slot; legacy SATA-only controllers do not).
• Reimage, do not clone raw. For VDI golden images, rebuild from template – the block size and queue-depth behavior change with NVMe.
• Verify slot form. E1.S 5.9mm fits E1.S cages; E3.S 7.5mm fits E3.S cages (R770-class 8-40 bay backplanes); U.2/U.3 drives use 2.5-inch bays. The three are not cross-compatible without an adapter.
• Stagger the cutover. Migrate one node, run the same workload profile for 48 hours, then scale to the fleet.

The 5-Year TCO View: NVMe vs SATA Per Bay

The NVMe decision is rarely about MB/s on paper – it is about bays and IOPS. When a VDI cluster needs 1M random-read IOPS, one E1.S drive replaces a rack section of SATA SSDs. At that point the price-per-GB comparison stops mattering and the price-per-IOPS comparison takes over, where Gen4 NVMe wins by an order of magnitude.

Workload Fit Quick Guide

• VDI / virtual desktop: 1 DWPD read-mostly profile; boot storms are the classic fit for 1,000K random read.
• AI inference caching: KV-cache and model-shard staging benefit from sub-ms latency at 7.68 TB density.
• Databases (read-heavy): OLTP read caches and analytics staging on NVMe tiers.
• Object storage front tier: E1.S density lets one node hold 40 drives – a 245 TB+ hot tier per 2U.

Deployment Notes

• Server fit: E1.S 5.9mm slots in 1U density builds; E3.S 7.5mm in 2U Xeon 6 cages (R770, R670 class). U.3 15mm remains the standard for 2.5-inch universal bays – see our 7450 Pro U.3 listing for that form factor.
• RAID: tri-mode controllers (e.g. PERC H965i) present E1.S/E3.S NVMe natively; no adapter needed.
• Security: order the SED variant when at-rest encryption is a compliance requirement (TCG Enterprise).
• Pairing: combine with a 24TB CMR HDD tier (e.g. Seagate Exos X24) for a two-tier NVMe-plus-capacity architecture.

Spec-Sheet Traps When Buying E1.S / E3.S SSDs

EDSFF procurement trips buyers more than any other SSD category, because the mistakes are silent – the drive physically fits, and the performance never arrives. Five traps to check before purchase:

• Form-factor trap. E1.S (5.9mm short card) and E3.S (7.5mm full-length card) are different cages. E1.S drives do not seat in E3.S bays and vice versa, and neither fits a 2.5-inch U.2/U.3 bay without an adapter tray. Confirm the server’s backplane part number, not the brochure.
• Generation trap. A Gen4 drive in a Gen5 backplane runs at full Gen4 speed – fine. A Gen5 drive in a Gen4 backplane drops to Gen4 – usually fine too, but the wasted spend is real. Buy media generation to match the platform’s intended lifecycle, not its peak marketing number.
• Security-variant trap. SED (self-encrypting) variants carry different model suffixes and cost a little more. If your compliance baseline requires TCG Enterprise or at-rest encryption, order SED explicitly – a standard drive cannot be upgraded to SED in the field.
• Endurance-unit trap. “1 DWPD” means one full drive write per day for five years. Convert your actual write rate: a 7.68 TB drive at 1 DWPD absorbs ~7.68 TB of writes daily. Log-heavy workloads that write 3x that need the 3 DWPD class (7450 Max) instead.
• Controller trap. Tri-mode controllers (PERC H965i-class) present NVMe natively; legacy SAS-only HBAs see nothing. Verify the controller generation before the drives arrive.

Run these five checks against the quote and the E1.S/E3.S tier behaves exactly like the datasheet promises – no surprise cages, no half-speed media, no failed security audit.

Buying FAQ

• E1.S or E3.S? E1.S for 1U/edge density and short slots; E3.S for 2U Gen5 cages with 8-40 drive options.
• Is PCIe 4.0 obsolete on Gen5 servers? No – Gen5 backplanes run 4.0 devices at full 4.0 speed; the drives are cheaper per TB than Gen5 media today.
• Endurance for VDI? 1 DWPD is the standard VDI tier; random-write patterns stay well inside budget.
• Warranty? Factory-direct supply, 3-year warranty, global shipping.
• E1.S 5.9mm or 15mm? The 7450 Pro E1.S is the 5.9mm short card; 15mm E1.S exists in other families for extra NAND. Check your cage depth before ordering.
• Can I mix 7450 Pro with other NVMe drives? Yes – any tri-mode controller mixes drives by presenting them independently; just keep RAID groups homogeneous for predictable rebuild behavior.
• Is 7.68 TB the largest size? In the Pro line, yes. Beyond that, move to E3.S capacity-class media or a 24TB HDD tier for bulk data.
• What about boot drives? E1.S is overkill for boot; keep a dedicated M.2 boot tier (e.g. BOSS-N1) separate and spend E1.S bays on data.

Building an E1.S/E3.S NVMe tier? As an authorized partner for Dell, xFusion and Micron we supply the 7450 Pro with factory-direct pricing, 3-year warranty, global shipping and free configuration free configuration consultation, including form-factor and backplane validation for your server model – browse our full range or contact us for a custom-quoted build.